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Shared Object library problem

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Operating Systems AIX Shared Object library problem
# 1  
Old 09-06-2006
Shared Object library problem
Hi,

When using shared objects on AIX 4.3 i am getting runtime problems.
I have a small sample program which links to a shared object libray, oracle and system related libraries.
At runtime it fails (gives segmentation fault and coredump ) in one proc file when executing login statement.

But the same program instead of using shared object library if i use archives and static linking runs fine.
What could go wrong? Any environment variable problem?
my LIBPATH variable points = "$ORACLE_HOME/lib32:$ORACLE_HOME/lib" and at linking phase i use "-L$(ORACLE_HOME)/lib32 -lc -lnsl -L$(ORACLE_HOME)/lib -lclntsh $(ORACLE_HOME)
/lib/libsql9.a -lnsl -ldl -lC -lm" arguments.

Debugging shows failure occurs when
"sqlcxt((void **)0, &sqlctx, &sqlstm, &sqlfpn);" is executed.
Which follows

Illegal instruction (reserved addressing fault) in . at 0x0 ($t1)
0x00000000 00000000 Invalid opcode.
I have urgent requirement of developing my application. Smilie
Any help is appreciated.

Thanks
-------------
Suman
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LEARN ABOUT SUSE

extutils::f77

F77(3)							User Contributed Perl Documentation						    F77(3)

NAME

       ExtUtils::F77 - Simple interface to F77 libs

DESCRIPTION

       This module tries to figure out how to link C programs with Fortran subroutines on your system. Basically one must add a list of Fortran
       runtime libraries. The problem is their location and name varies with each OS/compiler combination!

       This module tries to implement a simple 'rule-of-thumb' database for various flavours of UNIX systems.  A simple self-documenting Perl
       database of knowledge/code for figuring out how to link for various combinations of OS and compiler is embedded in the modules Perl code.
       Please help save the world by sending database entries for your system to karl_pgplot@mac.com

       The library list which the module returns can be explicitly overridden by setting the environment variable F77LIBS, e.g.

	 % setenv F77LIBS "-lfoo -lbar"
	 % perl Makefile.PL
	 ...

SYNOPSIS

	 use ExtUtils::F77;		  # Automatic guess
	 use ExtUtils::F77 qw(sunos);	  # Specify system
	 use ExtUtils::F77 qw(linux g77); # Specify system and compiler
	 $fortranlibs = ExtUtils::F77->runtime;

METHODS

       The following methods are provided:

       o   runtime

	   Returns a list of F77 runtime libraries.

	     $fortranlibs = ExtUtils::F77->runtime;

       o   runtimeok

	   Returns TRUE only if runtime libraries have been found successfully.

       o   trail_

	   Returns true if F77 names have trailing underscores.

       o   compiler

	   Returns command to execute the compiler (e.g. 'f77').

       o   cflags

	   Returns compiler flags.

       o   testcompiler

	   Test to see if compiler actually works.

       More methods  will probably be added in the future.

AUTHOR

       Karl Glazebrook (kgb@aaoepp.aao.GOV.AU).

perl v5.12.1							    2007-04-02								    F77(3)